Picked up a beat up dyna that needed to be completely rewired and while puling off one of the old wires a bolt pulled out with half of the plastic housing and I need to try and figure out what it is.

It was black and it had a spring in the plastic housing.

From the wir harness its one of the wires that connect to the starter. The wires that it isn't are the starter wire, the battery wire, the small brown wire or the small black wire. Its the longest one with the eye ring thats close to the driver foot peg.

Also the smaller black wire with the plug on top. Theres a black wire on a plastic harness coming from a spot underneath the starter under what looks to be a hex key cap. The new harness has that push down wire but its not connected to one of those rounded triangular harnesses. Is it the same wire just not connected to a harness? And what is this part.

Ill try to post some pictures of the part that snapped.

 

Just a blind shot in the dark (not having a pic)... it might have some thing to do
with a "trap door".

 

That bad boy right there.

 

That's a broken Oil Pressure Switch, part number 26561-84